Sender: <marv@lancaironline.net>
To: lml@lancaironline.net
Date: Fri, 29 Aug 2008 19:11:05 -0400
Message-ID: <redirect-3100485@logan.com>
Received-SPF: pass
 receiver=logan.com; client-ip=216.33.127.81; envelope-from=farnsworth@charter.net
From: "farnsworth" <farnsworth@charter.net>
Subject: RE: [LML] Re: ....thoughts on accidents "Flying slow is not for the uninformed, and maybe not for most"
MIME-Version: 1.0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: 7bit
In-Reply-To: <list-3098468@logan.com>
Thread-Index: AckJP7m0+8jrokW+RF6axnovFIwN8AADUOmg


"
..."i knot above stalling?"  ? ? Or is it one DEGREE below stall ANGLE (wind

to wing)."?
It apparently impossible to change pilots' thinking from stall airspeed to 
stall angle.
Whatever.
Yes,it's
Terrence"


I am well aware that a wing stalls at a certain AOA. I am also well aware
that the AIRSPEED at which the AOA is reached is dependent on several
factors. Two of which are the flap position and the "G" force.

Your aerospace mind is not the only mind that has grasped that fundamental.

The F-4 AOA was calibrated in UNITS. If I was discussing the stall of the
F-4, I would use the number of units associated with that AOA. However,
there is no COMMON measure that is used by the several AOA meters on the
market.

I used the 1kt, 2kt and 10kt values in the same sentence with AOA
deliberately, because I needed a reference from which to make a point.

Stalls occur at a given AOA, accelerated or unaccelrated. In unaccelerated
(1 "G") flight at a given weight, a wing will stall at a certain airspeed.
Since the discussion was centered on "slow flight" and most "slow flight" is
done at 1 "G", it is accurate and relevant to use the airspeed numbers for a
common measurement.

You might be interested to know that the best turn rate occurs several units
below stalling AOA.

Lynn Farnsworth
Super Legacy
TSIO-550 Powered
Race #44